Finding the Fourth Proportional to 86,423.42, 129,635.14 and 27,265.08
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Solution
The fourth proportional to 86,423.42, 129,635.14 and 27,265.08 is: 40,897.62
Step by Step Solution
- Step 1: Write the proportion equation
86,423.42 : 129,635.14 = 27,265.08 : x - Step 2: Convert to fraction form
86,423.42/129,635.14 = 27,265.08/x - Step 3: Cross multiply
86,423.42x = 129,635.14 × 27,265.08 - Step 4: Simplify right side
86,423.42x = 3,534,512,462.91 - Step 5: Solve for x
x = 3,534,512,462.91/86,423.42 - Step 6: Final answer
x = 40,897.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.